Communications: electrical – Continuously variable indicating – With meter reading
Patent
1983-10-26
1986-09-16
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
370 86, H04Q 900, H04J 308
Patent
active
046125418
ABSTRACT:
In a data transmission system, a given data transmission apparatus or station (STN) transfers a transmission start command (indicating the start of transmission) to an associated terminal thereof when the given station receives a send request signal from a distant terminal (T). Conversely, the given station receives data from the distant station through a high-speed transmission line and at the same time transfers a reception request command (indicating a reception request) to its associated terminal. The given terminal (as opposed to the distant terminal) transfers transmission data for a desired distant terminal to the given station when the command is a transmission start command, and the given terminal is then held in the status waiting state. However, when the command is a reception request command, the given station transfers the reception start signal to the given station and is held in the data waiting state. The given station can receive data transferred from the terminal thereof and at the same time transmit this data to the distant station through the high-speed transmission line. When the data transmitted through the high-speed transmission line is normally received by the distant station, the given station transfers the transmission end status signal to its associated terminal. When data which is received through the high-speed transmission line is completely transferred, the given station transmits the reception end status to its terminal.
REFERENCES:
patent: 4042783 (1977-08-01), Gindi
patent: 4489379 (1984-12-01), Lanier
patent: 4499576 (1985-02-01), Fraser
patent: 4510492 (1985-04-01), Mori et al.
Tokyo Shibaura Denki Kabushiki Kaisha
Yusko Donald J.
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